Confidence: Medium · Source: FCC ULS · As of 2026-09-09

KC8M

Active

Hefferan, Michael J

Location: Hudsonville, MI
Class: Amateur Extra
Granted: 2020-02-12
Expires: 2030-03-28
Previous call: KI8JF
FRN: 0002738391

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Vanity availability

Held

Currently held

KC8M is held by an active license; it isn't a vanity slot right now.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

KI8JFcancelled· E
Hefferan, Michael JMIgranted 1997-08-15cancelled 2000-03-28
KC8IJPcancelled· G
HEFFERAN, MICHAEL JMIgranted 1997-08-15cancelled 1999-10-19

Prior holders later became

K4YZcancelled· E
ROBESON, STEVEN JTNgranted 1996-12-04cancelled 2003-05-13

License history

0 events

No recorded events.

More vanity slots coming available

From Michigan

All →

W8SWM 2026-09-09
KD8TBR 2026-09-10
KD8TBU 2026-09-10
KD8TBW 2026-09-10
KD8TBY 2026-09-10

Starting with KC8

All →

KC8UTB OH · 2026-09-09
KC8UTD OH · 2026-09-09
KC8UOZ MI · 2026-09-12
KC8UTK TN · 2026-09-12
KC8UTL OH · 2026-09-12

Full history → Vanity availability → Callsign genealogy →